you cant fix it ...
just rest it and it will mend in about 6 weeks and i know this because i broke my leg twice
can a broken leg in a peacock be fix
you can tell if a birds leg is broken if it hobbles around. you can fix it by using a peice of wood and tape
You don't
You take it to the vet.
Dr. Mudd
Take it to the vet
Take them to a hospital.
Call your veterinarian
you know it love
jackhammer it in the face
Either replace the leg altogther or use adhesive glue to fill in the crack.
There is really no way to treat an ant's leg because they are so little, but you could find it a safe area where it's leg can heal by itself.